Chapter 57: Cutting Firewood and Burning Charcoal in the South Mountain
Although, the general is away from home and can wander around freely.
But Zhang Yang was still very worried. He hid in the cave alone, staring at everyone, feeling very anxious.
If it weren't for the law of true fragrance——
Well, once a man has spoken, eight horses can’t pull him back.
After preparing himself mentally, Zhang Yang went straight to the deepest part of the cave. As the saying goes, out of sight, out of mind. He wanted to go into seclusion, and he really did it.
"Ugh, that stinks!"
A few seconds later, Zhang Yang rushed out of the cave as if escaping. After all, he was not a true fasting and breath-holding practitioner.
"Don't look at me, I'm going to find a place where I can really retreat!"
Zhang Yang left angrily. He kept his word. He said he would not interfere, and he would not interfere!
One side of this valley is filled with stone walls and cliffs, so it should not be difficult to find a cave. There he will think about how to improve and optimize the magic power structure.
Half an hour later, Zhang Yang walked back helplessly, because there was only one cave in the valley, and it was such a good cave, with a depth of more than 50 meters and winding paths, but it was too smelly.
"You primitive people are so cruel. No, you Neanderthals are so cruel!"
Zhang Yang was muttering evil things in his heart, without even looking at Wu Yuan's inquiring gaze. "Don't try to get close to me. I'm nothing now."
After being busy for most of the day, he finally cleaned up the inside of the cave, and at this time he felt like a piece of rotten meat. Originally, he could command other members of the Guata tribe to do this kind of thing, but Zhang Yang kept his word and left everything to Wu Yuan himself. He would not help, interfere, or hinder.
During this period, Zhang Yang also personally hunted and killed an ordinary ferocious beast, and he would not even share his food.
When he built a small fire in the deepest part of the cave, the billowing smoke that had nowhere to go finally reminded him of something.
"I can burn trees into charcoal! The flames generated by burning wood alone are not completely high-temperature plasma. Even the outer flames that are most in contact with oxygen have a temperature of only 500 to 600 degrees. But if it is charcoal, it can easily refine steel, with a maximum temperature of over 1000 degrees!"
"Wait, let me think about it. What did we say in chemistry class? When charcoal burns, it seems that it is not a flame, but a kind of light, right? Because the essence of flame is a kind of flammable gas, including high-temperature steam and various small solid particles. When it comes into contact with air, it undergoes an oxidation reaction, and then light and heat appear, which means it becomes a plasma state—"
"I used the compressed soul force field to form the second closed circle, and then formed a curved force field. The flame it absorbed is not as scary and mysterious as ordinary people think. It is just a gas that cannot be fully burned."
"So what I want to figure out now is, can the light emitted by burning charcoal, that is, the heat it emits, be absorbed into the second closed circle instead of the flame? After all, heat can only be a process quantity, and its nature is different from that of flame. Flame is tangible, but heat is intangible."
Zhang Yang fell into deep thought, and after a long while he finally smiled. "You're being too stubborn if you think like that. I'm not a theorist. We'll know the details once we give it a try!"
Zhang Yang started making charcoal with great interest. Fortunately, even though he was a poor student, he knew something about how to make charcoal. He buried the almost burned wood with ashes to isolate it from the air. What was left was almost charcoal. Of course, the quality was definitely not as good as that made by professionals.
This busy process lasted for two whole days.
During this period, Zhang Yang always adhered to his promise and did not interfere with any of Wu Yuan's decisions. He even drove Wu Yuan away when he came to report to him!
Of course, Wu Yuan would only come to him once. If he came more than once, Zhang Yang might go back on his word.
During these two days, Zhang Yang burned about 500 kilograms of charcoal. Not to mention the quality, during the charcoal burning process, he combined what he had learned in the past and the little knowledge he could still remember with the soul force field, and he really figured out a lot of interesting things, which made him full of confidence in the next experiment.
On the third day, which was the fourth day of the Hero Trial, Wu Yuan led 15 warriors of the Guada tribe out before Zhang Yang started the experiment. He did not inform Zhang Yang before he left, and Zhang Yang did not even know what Wu Yuan was going to do. At this moment, it was impossible for Zhang Yang to say that he was not worried or regretful. He was afraid that the next moment he would hear that he had failed the Hero Trial and was wiped out. Oh, no, how could there be news after being wiped out? He just died.
After spinning around like an ant on the hot pan for a few times, Zhang Yang finally yelled and decided to ignore it. He chose to trust Wu Yuan, believing that he could do everything independently, that he would grow quickly, and that he was truly the hero of the village.
"This is not a heroic trial at all, this is clearly the village chief's bloody trial!"
With a long sigh, Zhang Yang finally gave it his all. He put aside all distractions, focused his mind, and began to concentrate on building a simple earthen stove.
He didn't want a sealed furnace that could be used to smelt iron, but just one that could allow the charcoal to burn fully and reduce heat loss.
After all, he was just doing an experiment, not making steel.
By the way, he should be the first person in history to study fireball magic in such a down-to-earth way.
After the earthen stove was slightly dry and formed, Zhang Yang put the charcoal in and arranged it, and finally ignited it. He also covered the stove with a stone slab and a blower - of course he didn't have one, but he could use his soul force field to compress air balls, one by one, and continuously send them into the burning earthen stove. The effect was excellent.
So in just a moment, the heat wave was rolling.
Zhang Yang didn't dare to wait too long. His soul force field could control the flame purely because the temperature was not high enough. Now the temperature in this earthen furnace must be about 600 to 700 degrees.
With a grit of his teeth, Zhang Yang began to compress the soul force field. There was no need for any compressed air ball. He directly constructed a second closed circle to form a curved force field, covering the earthen stove - bang!
With a loud bang, the earthen stove shattered, and the mud, stones, and red-hot charcoal were all sucked into the curved force field. In an instant, a ball of earth appeared out of thin air in his hands.
Fortunately, he reacted quickly enough and directly built a fourth closed circle to throw the ball of earth out.
"boom!"
There was a loud bang, smoke billowed, and rocks and earth flew everywhere. This scene was so familiar.
Standing still for a long time,
Zhang Yang: MMP, is this a grenade?
(End of this chapter)
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